Regional registry
Montana
2 documented locations. Others may exist; funding to check ran out.
Jack-in-the-Box of Last Resort
Sealed inside eleven inches of ductile iron and laminated glass on a pad off Secondary 244, a crank-wound jack-in-the-box waits on a radiological sensor calibrated to release it only upon fallout consistent with a general nuclear exchange. Commissioned in 1994 with defense-adjustment art money, it has never operated, and Quillan County certifies each October that it remains ready to.
Snow Fence Preview Yard No. 2
Seasonal comparison notes are still posted on a plywood bulletin board under a shallow metal awning by the Judith Basin County Road Operations Division, which appears to maintain the County Snow Fence Preview Yard at the east edge of Rivette beside a county shop complex and a pull-through gravel lot, where several short runs of snow fencing in different slat spacings and post intervals are displayed. It appears to be maintained by the Judith Basin County Road Operations Division, which still posts seasonal comparison notes on a plywood bulletin board under a shallow metal awning. The hook is that the yard was not built for tourists at all, but for procurement review, and then gradually acquired a picnic table, a directional sign, and a donation tube for replacement staples. The current unresolved issue is whether the south gate is actually intended for visitors or only for county trucks.